provided \(h_{\alpha (n)} \)  and \(\xi _{\alpha (n-2)} \)  are primary fields of dimension
\((2-n/2 )\)  and \((1-n/2)\) , respectively. As discussed in [1]}, the Weyl transformation law of \(h_{ \alpha (n)}\)  implies that \(\mathfrak {C}_{\alpha (n)}(h) \)  is a primary
field of dimension (REF ).
